Idea 10of 22Builds onNumbers on the top view give the heights
Shading on the top view shows height
How else can a top view show which stacks are tallest?
Today you'll discover
- how shading stands for height
- why a key is needed
- what a plain top view loses
Think firstDarker squares are taller stacks
On this shaded top view, which square is the tallest stack?
Decide first, then press Next. Match each square to the key under it.
The top view of the seven cubes with its squares shaded: the back square dark and cross-hatched, the front-left square medium and hatched, the other two light. A key reads light 1 tall, medium 2 tall, dark 3 tall. Then numbers appear in the squares, and then the shading is taken away.
See the whole ideathe big idea and the key word, in one place
The big idea
Shading a top view darker for taller stacks shows the heights without numbers.
Easy to get wrongWithout a key, shading tells you which stack is taller, but not how tall it is.
Where it goes nextMaps shade mountains darker in the same way, so you can spot the high ground at a glance.
Key word
- shading
- colouring squares lighter or darker to show something, here how tall each stack is
Ready to use it?
- Read heights from a shaded top view.
- Shade a top view to show heights.